Compare

Klasse G-board® Gypsum External Sheathing Board (Outwear) - External Sheathing Board

Name: Klasse G-board® Gypsum External Sheathing Board (Outwear) - External Sheathing Board
Brand: Klasse Group Ltd
SKU: dK3jXgF38KhEAq1i9NwwU6

Verified by manufacturer 1 month ago

Klasse Group Ltd

Third party certifications:

BBA Agrément Certificate
Certificate type
EPD
Certificate type

High-performance external gypsum-based sheathing board made with special glass fibre and is durable against fire, moisture, mould and impact.

Jump to:

+44 (0)1432 842 030 Website

Application

Used as an external sheathing board to provide weather protection to a lightweight steel frame construction prior to the installation of external wall insulation and facade system. Also suitable for modular and timber-framed buildings.

To achieve weather tightness, Klasse external sheathing board should be sealed with FireFend™ silicone sealant or joint tape.

Description

Lightweight and easy to carry, it facilitates fast, practical, and economical construction solutions.

Composed of calcium sulphate dihydrate is encased within a glass fibre mat. Additionally nominal amounts of additives such as starch, foaming agent, dispersants, wax and glass fibre.

Klasse external sheathing board is coloured green on the front face and green on the back face.

Features and benefits:

Euroclass A1, is fully non-combustible and suitable for structures over 18 m.
Extensively tested in a through wall system to achieve 90 mins fire protection (BS EN 1364-1).
BBA Certified.
High density to mitigate fire, wind and installation damage and ensure you deliver a safe, on-time project.
Boasts impressive pull-through strength and high-impact resistance.
Easy to handle, 30% lighter than traditional cement boards.
Can be cut with a knife - no power tools are required for cutting and minimal dust is produced.
Can easily be curved.
Can eliminate the need for a breather membrane helping to lessen project costs.
Water-resistant with a 12 months exposure guarantee.
12-Year warranty available.

General information

Color	Green
Finish	Matt
Material	Gypsum Glass Fibre
Shape	Rectangle
Length	2400 mm
Width	1200 mm
Height	12.5 mm Guidance for specification option: Thickness
Warranty description	12 year Guidance for specification option: 12-month exposure warranty as standard. 12-year warranty available.

Uniclass	Pr_25_71_35_29 Fibre-reinforced gypsum boardsPrimary
CAWS	K11/485 Wall sheathing

Specification data - Fibre-reinforced gypsum boards

Standard	To BS EN 15283-1:2008 + A1:2009, Type GM-H1.
Reinforcement	Glass fibre-reinforced.
Third-party product certification	BBA Certificate 22/6085.
Fire rating	A1 Non-Combustible.
Thickness	12.5 mm.
Edges	Square.

Flexural strength	Perpendicular to liner paper fibres: ≥761 N, parallel to liner paper fibres: ≥601 N.
Thermal conductivity	To BS EN 12524, 0.25 W/mK.
Water absorption	≤5%.
Area weight	≤12 kg/m².
Core	Moisture-resistant.
Paper facings	Moisture-resistant.

Sustainability data

Embodied carbon A1-A3 (production stage) as defined in BS EN 15804	5.28 kg CO₂ eq/m²
Recyclability	The gypsum core is fully recyclable
Recycled content As defined in clause 7.8 of BS EN ISO 14021	1 %